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1、制造商逐步取代塑料罐Directions:Thepassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,C,D.YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.Polyester(聚酯)isnowbeingusedforbottl
2、es.ICI,thechemicalsandplasticscompany,believesthatitisnowbeginningtobreakthegripofglassonthebottlebusinessandthustakeadvantageofthishugemarket.Alltheplasticsmanufacturershavebeenexperiencinghardtimesastheirtraditionalproductshavebeendoingbadlyworld-wideforthelastfe
3、wyears.Between1982and1984thePlasticsDivisionofICIhadlostahundredandtwentymilliondollars,andtheyfeltthatthe.mosthopefulnewmarketwasinpackaging,bottlesandcans.Since1982ithasopenedthreenewfactoriesproducing"Melinar",therawmaterialfromwhichhighqualitypolyesterbottlesar
4、emade.Thepolyesterbottlewasborninthe1970s,whensoftdrinkscompanieslikeCocaColastartedsellingtheirdrinksingianttwo-litercontainers.Becauseofthebuild-upofthepressureofgasintheselargecontainers,glasswasunsuitable.NorwasPVC,theplasticwhichhadbeenusedforbottlessincethe19
5、60s,suitablefordrinkswithgasinthem.Anewplastichadtobemade.Glassisstillcheaperforthesmallerbottles,andwillcontinuetobesounlessoilandplasticbecomemuchcheaper,butplasticdoeswellforthelargersizes.Polyesterbottlesarevirtuallyunbreakable.Themanufacturersclaimtheyarealsol
6、ighter,lessnoisywhenbeinghandled,andcanbereused.Shopkeepersandotherbusinesspeopleareunlikelytoobjecttoachangefromglasstopolyester,sincethesebottlesmeanfewbreakages,whicharecostlyandtime-consuming.Thepublic,though,havebeenmoredifficulttopersuade.ICI'scommercialdepar
7、tmentisdevelopingdifferentbottleswithinterestingshapes,totryandmakethemvisuallymoreattractivetothepublic.Thenextstepcouldbetodevelopaplasticwhichcouldreplacetinsforfood.Theproblemhereisthehightemperaturesnecessaryforcookingthefoodinthecontainer.26.Plasticsofvarious
8、kindshavebeenusedformakingbottles__________.A.since1982B.sincethe1970sbutonlyforlargebottlesC.sincethe1960sbutnotforliquidswithgasinthemD.sinceco
